HomeHVAC > Hoses and PipesDayco 87612 HVAC Heater Hose
Part #: 87612

Dayco 87612 HVAC Heater Hose

Small I.D. Heater Hose, Heater To Tee
⚙️ 67 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$19.62Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Heater To Tee
🚗Fitment: Chevrolet, Pontiac, Ford, Mazda, Mercury, Saturn, and Volkswagen, Malibu, G6, Escape, Tribute, Mariner, Aura, Cougar, Contour, Mystique, Camaro, Taurus, Firebird, Aerostar, Escort, EXP, Cabriolet, Scirocco, Lynx, LTD, Mustang, Jetta, Quantum, Rabbit, and Rabbit Convertible
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dayco Small I.D. Heater Hose 87612

The Dayco Small I.D. Heater Hose 87612 is designed for reliable HVAC system performance in various vehicle models. Engineered with durable EPDM material, this dual inside diameter hose supports efficient coolant flow in heating applications for Chevrolet, Ford, Mazda, Mercury, Pontiac, Saturn, and Volkswagen vehicles.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Dual inside diameters: 5/8 inch and 3/4 inch ends for versatile fitment
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Black color for standard OEM appearance
  • Trunk height of 6 inches for proper routing and installation

Detailed Product Description

The Dayco Small I.D. Heater Hose part number 87612 is a dual I.D. hose designed to accommodate different connection sizes on each end, with a 5/8 inch inside diameter on one end and 3/4 inch on the other. Made from EPDM (ethylene propylene diene monomer) rubber, this hose offers excellent resistance to heat, ozone, and coolant chemicals, ensuring durability and long service life in HVAC heater systems. The hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling applications. Its black color matches OEM specifications, and the 6-inch trunk height allows for proper fitment and routing within the engine compartment.

The Small I.D. Heater Hose product line by Dayco focuses on providing hoses with smaller inside diameters tailored for specific HVAC heater system requirements. This line ensures compatibility with a range of vehicle models by offering dual I.D. hoses that accommodate varying inlet and outlet sizes, simplifying replacement and maintenance tasks.

Compatible Vehicles and Applications

This heater hose is compatible with multiple makes and models, including Chevrolet Camaro, Malibu, and Aura; Ford Mustang, Escape, and Taurus; Mazda Tribute and 6; Mercury Cougar and Mystique; Pontiac Firebird and G6; Saturn Aura; and Volkswagen Jetta and Rabbit Convertible. The Dayco 87612 hose is designed to maintain proper coolant flow in the heater core circuit, supporting effective cabin heating and HVAC system operation.

  • Replaces worn or cracked heater hoses causing coolant leaks
  • Solves heater core flow restrictions due to hose collapse or damage
  • Prevents overheating issues related to faulty heater hose connections
  • Restores proper HVAC heating performance in compatible Chevrolet, Ford, Mazda, Mercury, Pontiac, Saturn, and Volkswagen models

Installation Notes and Tips

  • Verify hose diameters and length before installation to ensure proper fit
  • Inspect hose clamps and replace if corroded or damaged
  • Drain coolant system partially to avoid spills during hose replacement
  • Ensure hose routing matches OEM configuration to prevent kinks or interference
  • Check for leaks after installation and refill coolant as necessary

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87612 to meet stringent SAE specifications, ensuring reliable performance in automotive HVAC systems. The EPDM material and construction standards provide resistance to heat, pressure, and chemical exposure typical in engine compartments. While specific warranty details are not provided, Dayco products generally adhere to industry quality standards and are backed by the brand's commitment to durability and fitment accuracy.

BrandDayco
Part Number87612
PositionSmall I.D. Heater Hose, Heater To Tee
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter3/4
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height6

This part fits 67 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2010ChevroletMalibu3.5LV6GASHeater To TeeSmall I.D. Heater Hose
2010PontiacG63.5LV6Heater To TeeSmall I.D. Heater Hose
2009ChevroletMalibu3.5LV6GASHeater To TeeSmall I.D. Heater Hose
2009PontiacG63.5LV6Heater To TeeSmall I.D. Heater Hose
2008ChevroletMalibu3.5LV6Heater To TeeSmall I.D. Heater Hose
2008FordEscape2.3LL4Pipe to Engine (Inlet)Small I.D. Heater Hose
2008MazdaTribute2.3LL4Pipe to Engine (Inlet)Small I.D. Heater Hose
2008MercuryMariner2.3LL4Pipe to Engine (Inlet)Small I.D. Heater Hose
2008PontiacG63.5LV6Heater To TeeSmall I.D. Heater Hose
2008SaturnAura3.5LV6Heater To TeeSmall I.D. Heater Hose
2007ChevroletMalibu3.5LV6Heater To TeeSmall I.D. Heater Hose
2007FordEscape2.3LL4GASPipe to Engine (Inlet)Small I.D. Heater Hose
2007MercuryMariner2.3LL4GASPipe to Engine (Inlet)Small I.D. Heater Hose
2007PontiacG63.5LV6Heater To TeeSmall I.D. Heater Hose
2007SaturnAura3.5LV6Heater To TeeSmall I.D. Heater Hose
2002MercuryCougar2.0LL4Pipe To ThermostatSmall I.D. Heater Hose
2001MercuryCougar2.0LL4Pipe To ThermostatSmall I.D. Heater Hose
2000FordContour2.0LL4N/ASmall I.D. Heater Hose
2000MercuryCougar2.0LL4Pipe To ThermostatSmall I.D. Heater Hose
2000MercuryMystique2.0LL4N/ASmall I.D. Heater Hose
1999FordContour2.0LL4N/ASmall I.D. Heater Hose
1999MercuryCougar2.0LL4N/ASmall I.D. Heater Hose
1999MercuryMystique2.0LL4N/ASmall I.D. Heater Hose
1998FordContour2.0LL4N/ASmall I.D. Heater Hose
1998MercuryMystique2.0LL4N/ASmall I.D. Heater Hose
1995ChevroletCamaro3.4LV6Pipe To Water PumpSmall I.D. Heater Hose
1995FordTaurus3.0LV6FLEXValve To PipeSmall I.D. Heater Hose
1995FordTaurus3.0LV6GASValve To PipeSmall I.D. Heater Hose
1995PontiacFirebird3.4LV6Pipe To Water PumpSmall I.D. Heater Hose
1994ChevroletCamaro3.4LV6Pipe To Water PumpSmall I.D. Heater Hose
1994FordTaurus3.0LV6FLEXValve To PipeSmall I.D. Heater Hose
1994FordTaurus3.0LV6GASValve To PipeSmall I.D. Heater Hose
1994PontiacFirebird3.4LV6Pipe To Water PumpSmall I.D. Heater Hose
1993ChevroletCamaro3.4LV6Pipe To Water PumpSmall I.D. Heater Hose
1993FordAerostar3.0LV6Heater To PipeCompatible with vehicles containing air conditioning.; Small I.D. Heater Hose
1993FordTaurus3.0LV6Pipe To ValveSmall I.D. Heater Hose
1993PontiacFirebird3.4LV6Pipe To Water PumpSmall I.D. Heater Hose
1992FordAerostar3.0LV6Heater To PipeCompatible with vehicles containing air conditioning.; Small I.D. Heater Hose
1992FordTaurus3.0LV6Pipe To ValveSmall I.D. Heater Hose
1991FordAerostar3.0LV6Heater To PipeCompatible with vehicles containing air conditioning.; Small I.D. Heater Hose
1991FordTaurus3.0LV6Pipe To ValveSmall I.D. Heater Hose
1990FordAerostar3.0LV6Heater To PipeCompatible with vehicles containing air conditioning.; Small I.D. Heater Hose
1990FordEscortHeater To Pipew/o A.C., w/o H.D. Heat; Small I.D. Heater Hose
1990FordTaurus3.0LV6Pipe To ValveSmall I.D. Heater Hose
1989FordEscortHeater To Pipew/o A.C., w/o H.D. Heat; Small I.D. Heater Hose
1989FordTaurus3.0LV6Pipe To ValveSmall I.D. Heater Hose
1988FordEscortHeater To Pipew/o A.C., w/o H.D. Heat; Small I.D. Heater Hose
1988VolkswagenCabrioletPipe To ValveSmall I.D. Heater Hose
1987FordEscort1.9LL4Heater To Pipew/o A.C., w/o H.D. Heat; Small I.D. Heater Hose
1987MercuryLynx1.9LL4Heater To Pipew/o A.C., w/o H.D. Heat, Exc. H.O.; Small I.D. Heater Hose
1987VolkswagenCabrioletPipe To ValveSmall I.D. Heater Hose
1986FordLTD2.3LL4Pipe To Intake ManifoldSmall I.D. Heater Hose
1986FordLTD2.3LL4Heater To Intake ManifoldFits vehicles without air conditioning.; Small I.D. Heater Hose
1986FordMustang2.3LL4Pipe To Intake ManifoldSmall I.D. Heater Hose
1986VolkswagenCabrioletPipe To ValveSmall I.D. Heater Hose
1985FordMustang2.3LL4Pipe To Intake ManifoldCompatible with vehicles containing air conditioning.; Small I.D. Heater Hose
1985VolkswagenCabrioletPipe To ValveSmall I.D. Heater Hose
1984VolkswagenJetta1.7LL4Heater To ValveSmall I.D. Heater Hose
1984VolkswagenJetta1.8LL4Heater To ValveSmall I.D. Heater Hose
1984VolkswagenQuantum1.8LL4Heater To ValveSmall I.D. Heater Hose
1984VolkswagenRabbit ConvertibleHeater To ValveSmall I.D. Heater Hose
1983VolkswagenJetta1.7LL4Heater To ValveSmall I.D. Heater Hose
1983VolkswagenRabbit ConvertibleHeater To ValveSmall I.D. Heater Hose
1982VolkswagenJetta1.7LL4Heater To ValveSmall I.D. Heater Hose
1982VolkswagenRabbit ConvertibleHeater To ValveSmall I.D. Heater Hose
1981VolkswagenJetta1.7LL4Heater To ValveSmall I.D. Heater Hose
1981VolkswagenRabbit ConvertibleHeater To ValveSmall I.D. Heater Hose

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

14006S

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.